KR100457581B1 - Bubble-outflow protecting structure of drum type washer - Google Patents

Abstract

The foam outflow blocking structure of the drum washing machine according to the present invention protrudes on the upper side of the tub and has a duct part connected to the bellows, and is disposed inside the duct part so as to rise when bubbles are filled into the duct part to block the bellows inner circumferential surface. And a central rib protruding from the lower end of the center of the float, a lifting guide formed in the water supply duct such that the central rib is slidably inserted to guide the lifting, and fitted to the float so that the float can be buffered above the lifting guide. It is composed of a rubber ring, and the vibration ring is formed integrally with the rubber ring and extending downward to surround the central rib to reduce the vibration between the central rib and the lifting guide, the vibration of the central rib when the vibration of the tub Noise is reduced, so quiet operation Neunghage, and it has the effect of improving consumer confidence in the product.

Description

Foam outflow blocking structure of drum washing machine {Bubble-outflow protecting structure of drum type washer}

The present invention is a drum washing machine in which the float is raised when the foam is generated to block the duct of the tub to block the outflow of the foam, and more specifically, the foam outflow of the drum washing machine in which the raised float is not shaken by vibration is reduced. It relates to the blocking structure.

In general, a drum washing machine is a device for washing laundry through a process of washing, rinsing, and dehydrating to remove contamination from clothes, bedding, and the like accommodated in the drum by using water and detergent supplied into the tub.

The conventional drum washing machine supplies detergent and water into the tub through an inlet bellows connecting the outlet of the detergent container and the water supply duct of the tub, and washing the laundry contained in the drum while the drum inside the tub is rotated.

Meanwhile, in the conventional drum washing machine, when the drum is rotated, bubbles generated in the tub flow out of the washing machine through the water supply duct of the tub to which the washing water is supplied and the ventilation duct provided for internal aeration, thereby contaminating the detergent container and the exterior of the washing machine. Bars were provided to each of the water supply duct and the ventilation duct to provide a bubble outflow blocking structure to block outflow of bubbles.

1 is a perspective view showing a foam outflow blocking structure of the drum washing machine according to the prior art, Figure 2 is a plan view showing a bubble outflow blocking structure of the drum washing machine according to the prior art, Figure 3 is a line AA of Figure 2 It is a cross section.

The foam outflow blocking structure of the conventional drum washing machine, as shown in Figs. 1 to 3, the duct portion 10 is protruded on the upper side of the tub 6 and one end is connected to the bellows 8, and the duct portion ( 10) a float 20 which is disposed inside and rises when bubbles are filled into the duct part 10 and blocks an inner circumferential surface of the bellows 8, and a central rib 26 protruding from a lower end of the center of the float 20; ), The lifting guide 12 formed in the duct part 10 so that the lifting and lowering of the central rib 26 is guided, and the float 20 can be raised to buffer the upper lifting guide 12. It is configured to include a rubber ring 30 fitted to the float 20 to be.

Here, the bellows 8 is fastened by the duct part 10 and the clamp 9, the inner peripheral surface is formed with a circular rib 9 protruding in the center direction, the float 20 is the bellows (8) It is formed in a hemispherical shape formed smaller than the inner diameter of the convex upwards, the bubble is made to be easily floated by the air trapped in the inner space, the lower end is formed larger than the inner diameter of the bellows (8) and the float (20) The rising jaw portion 22 that is in close contact with the circular rib 9 is formed at the time of rise.

The elevating guide 12 is a cylindrical portion 14 having a hollow inside so that the float 20 is inserted and sliding guide, and the outer circumference of the cylindrical portion 14 and the duct so that the cylindrical portion 14 is supported. Consists of a plurality of support ribs 16 radially disposed between the inner peripheral surface of the portion (10).

The drum washing machine configured as described above causes the float 20 to float when bubbles are generated due to the bubble leakage blocking structure so that the bubbles are not leaked by blocking the bellows 8.

However, the foam outflow blocking structure of the drum washing machine according to the prior art has a problem that the central rib is shaken due to the vibration generated by the tub when the drum rotates and the noise is generated by hitting the inner surface of the lifting guide.

The present invention has been made to solve the above problems of the prior art, by installing a dustproof member between the inner side of the center rib and the lifting guide to reduce the noise due to the vibration of the central rib when the vibration of the tub is quieted during washing operation It is an object of the present invention to provide a foam outflow blocking structure of the drum washing machine that can be operated.

1 is a perspective view showing a foam outflow blocking structure of the drum washing machine according to the prior art,

Figure 2 is a plan view showing the foam outflow blocking structure of the drum washing machine according to the prior art,

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a partially cutaway perspective view of an embodiment of a drum washing machine according to the present invention;

5 is a cross-sectional view of the drum washing machine according to the present invention;

Figure 6 is a plan view showing the foam outflow blocking structure of the drum washing machine according to the present invention,

7 is a cross-sectional view taken along line B-B of FIG.

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 6 when bubbles are filled in the tub.

<Explanation of symbols on main parts of the drawings>

52: case 54: door

56: Tub 58: Drum

60: drive motor 62: water supply hose

64: detergent container 67: clamp

68: inlet bellows 69: round rib

70: water supply duct 72: lifting guide

74: cylindrical portion 76: support rib

80: float 82: locking jaw

86: center rib 88: air shield plate

90: rubber ring 92: buffer protrusion

93: elastic groove 95: dustproof part

108: ventilation bellows 110: ventilation duct

The foam outflow blocking structure of the drum washing machine according to the present invention for solving the above problems is formed in the upper side of the tub and the duct part is connected to the bellows, and the foam is filled in the duct part is disposed inside the duct part A float which rises to block the inner circumferential surface of the bellows, a central rib projecting from the lower end of the center of the float, a lifting guide formed in the water supply duct such that the central rib is slidably inserted to guide the lifting, and the float is cushioned above the lifting guide. It is composed of a rubber ring fitted to the float so as to be raised, and a dustproof portion formed integrally with the rubber ring and extending downward to surround the central rib to reduce the vibration between the central rib and the lifting guide.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a partially cutaway perspective view of one embodiment of a drum washing machine according to the present invention, Figure 5 is a cross-sectional view of the drum washing machine according to the present invention.

4 and 5, the drum washing machine according to an embodiment of the present invention, the door 54 is installed to be opened and closed on the front of the case 52, the laundry access hole 54a is formed in the front center. The tub 56 is supported by the spring 53a or the damper 53b in the case 52, and the laundry is accommodated in the tub 56 and rotated by the driving motor 60 to wash the laundry. A drum 58 for washing, rinsing and dehydrating is disposed.

In addition, a water supply duct 70 for supplying water or a detergent is formed at an upper side of the tub 56, and a water supply hose 62 for supplying external water to the inner upper portion of the case 52, and laundry. Detergent or softener required for cleaning of the water is stored and the water supply passage (64a) of the water required for washing, rinsing, dehydration is formed, and the detergent container 64 formed with an outlet (64b) at the end of the water supply passage (64a), and the detergent container ( Inlet bellows (68) for guiding the detergent or water discharged to the outlet (64b) of the 64 through the water supply duct 70 into the tub 56 is disposed to the water or detergent to the inside of the tub 56 It is made to supply.

On the other hand, the drum 58 is formed in the circumference so that a plurality of handmade 58a is formed around the tub 56 so that the water or detergent contained in the tub 56 is soaked in the laundry, and the received laundry can be lifted and dropped. The lift 58b is mounted.

Reference numeral 110 is a ventilation duct formed on the other side of the upper tub 56, reference numeral 108 is a ventilation bellows one end is connected to the ventilation duct 110, the inside of the tub 56 and the outside of the washing machine Connected to be aerated to each other is configured to enable breathing even if the person or small animals are trapped inside the tub (56).

In addition, in the drum washing machine according to the present invention, when the amount of detergent contained in the washing water during washing is large, bubbles are generated when the drum 58 is stirred, and the detergent container 64 or the water supply duct 70 and the ventilation duct 110 are formed. Since the outflow to the outside of the washing machine pollutes the surrounding environment, a bubble outflow blocking structure is provided to block outflowing bubbles as described above.

Here, since the foam outflow blocking structure applied to the water supply duct 70 and the ventilation duct 110 is applied in the same structure, in the present invention to explain the foam outflow blocking structure applied to the water supply duct 70 as an example. do.

FIG. 6 is a plan view illustrating a bubble leakage blocking structure of the drum washing machine according to the present invention. FIG. 7 is a cross-sectional view illustrating the line BB of FIG. 6, and FIG. 8 is a line BB of FIG. 6 when bubbles are filled in the tub. It is a sectional view shown.

Bubble blocking structure of the water supply duct 70 according to an embodiment of the present invention is disposed in the water supply duct 70, as shown in Figures 6 to 8 and the foam filled with the water supply duct 70 In this case, the float 80 which rises to block the inner circumferential surface of the inlet bellows 68, the central rib 86 protruding from the lower end of the center of the float 80, and the central rib 86 are slidably inserted to guide the lifting. A lifting guide 72 formed in the water supply duct 70, a rubber ring 90 fitted to the float 80 so that the float 80 can be buffered on an upper side of the lifting guide 72, and It is formed integrally with the rubber ring 90 and extends downward to surround the central rib 86 to constitute a dustproof part 95 to reduce vibration between the central rib 86 and the lifting guide 72. do.

On the other hand, the inlet bellows 68 is connected to the detergent container 64 and the clamp 67 so that the upper end is in communication with the outlet 64b of the detergent container, and the lower end is clamped to the upper end of the water supply duct 70. The circular rib 69 is formed to protrude toward the center from the inner circumferential surface of the inlet bellows 68 so as to be in surface contact with the float 80 raised by the foam.

Here, the float 80 is formed in a hemispherical shape smaller than the inner diameter of the inlet bellows 68 and formed to be convex upward, so that the air is trapped in the inner space when the bubble fills up, it is easily floated, the bottom A locking jaw 82 is formed larger than the inner diameter of the inlet bellows 68 and is in close contact with the circular rib 69 when the float 80 is raised.

In addition, the elevating guide 72 has a cylindrical portion 74 having a hollow inside so that the float 80 is inserted and sliding guide, and the outer circumference of the cylindrical portion 74 so that the cylindrical portion 74 is supported. It consists of a plurality of support ribs 76 disposed radially between the inner peripheral surface of the ventilation duct 90.

In addition, the support rib 76 has a portion close to the inner circumferential surface of the water supply duct 70 and is increased in height toward the outer circumferential side of the water supply duct 70.

In addition, the bubble outflow blocking structure is the float 80 by the air blown to the lower side of the float 80 due to the internal pressure change when the door 54 is closed on one side of the elevating guide 72 An air shield plate 88 is installed to block the air blown so as not to float.

On the other hand, the rubber ring 90 is fitted to the top of the outer circumferential surface of the central rib 72, a ring-shaped buffer protrusion 92 protrudes at the bottom, so that the buffer protrusion 92 can be easily moved to the lower inner peripheral side. Ring-shaped elastic groove 93 is formed.

In addition, since the dustproof part 95 is formed of a rubber material, since the frictional force with the inner circumferential surface of the cylindrical part 74 is increased and the insertion is not easy, the inner circumferential surface of the cylindrical part 74 is formed to be gradientd upwards. Easy to insert

That is, the cylindrical portion 74 is formed so that the size of the inner diameter is larger toward the upper side, the central rib 86 is configured to increase the size of the outer diameter toward the upper side corresponding to the inner diameter of the cylindrical portion 74, When the bubble fills the tub 56, the lifting guide 72 is easily lifted from the cylindrical portion 74.

Looking at the operation of blocking the bubbles in the water supply duct of the present invention configured as described above are as follows.

First, the water and the detergent discharged from the detergent container 64 during the water supply stroke for the washing stroke is put in the tub 56 through the inlet bellows 68 and the water supply duct 70 in order, and the drum 58 It is introduced into the drum (58) through the hand (58a) of the) and is soaked in the laundry.

In this case, as shown in FIG. 2, the float 80 is raised above the lifting guide 72 with the rubber ring 90 interposed therebetween, and water and detergent dropped to the float 80 are disposed. It will flow down naturally without getting stuck on the top.

After the water supply administration of the water and the detergent as described above for a predetermined time, the drive motor 60 is driven to perform a washing stroke by stirring the drum (58).

At this time, when the amount of detergent contained in the wash water or the rotation amount of the drum 58 is large, bubbles are generated, and when the bubble fills the tub 56, the float 80 is raised.

At this time, the float 80 is the central rib 86 is inserted into the cylindrical portion 74 of the ascending guide 72 and rises to a predetermined height, when the float 80 rises a certain height, the locking jaw portion 82 is It is caught while being in surface contact with the circular ribs 82 to block the inner circumferential surface of the inlet bellows 68 to block bubbles from flowing out of the tub 56 through the inlet bellows 68.

Then, when the bubbles disappear in the tub 56, the float 80 falls by its own weight, and the rubber ring 90 fitted to the central rib 86 of the float 80 has a lower end thereof. The elevating guide 72 is placed on the upper end of the cylindrical portion (74).

At this time, the rubber ring 90 reduces the impact or noise that can be generated between the cylindrical portion 74 while the ring-shaped buffer projection 92 is instantaneously bent or compressed.

In addition, the central rib 86 is buffered on the inner circumferential surface of the cylindrical portion 72 by the left and right oscillation vibration dampers 86 so that noise is not generated.

As described above with reference to the illustrated drawings, the ventilator of the drum washing machine according to the present invention, the present invention is not limited by the embodiments and drawings disclosed herein, but various changes by those skilled in the art within the scope of the technical spirit of the invention Of course, modifications can be made.

The foam outflow blocking structure of the drum washing machine according to the present invention configured as described above is integrally formed with the rubber ring and extends downward to surround the central rib to reduce vibration between the central rib and the lifting guide. Since the noise due to the vibration of the central rib is reduced when the vibration of the tub is generated, it is possible to enable the quiet operation during the washing operation, it is effective to improve the product reliability of the consumer.

Claims (2)

A duct section protruding from the top of the tub and having one end bellowed; A float which is disposed inside the duct part and rises when the bubble fills the duct part to block the inner circumferential surface of the bellows; A central rib protruding from the bottom of the center of the float, An elevating guide formed in the water supply duct such that the central rib is slidably inserted to guide the elevating; A rubber ring fitted to the float so that the float may be buffered on the lifting guide; And a dustproof part formed integrally with the rubber ring and extending downward to surround the central rib to reduce vibration between the central rib and the lifting guide. The method of claim 1, The lifting guide has a larger inner diameter as it goes upwards, The central rib has a foam outflow blocking structure of the drum washing machine, characterized in that configured to increase the size of the outer diameter corresponding to the inner diameter of the lifting guide toward the upper side.